A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1636 UTC on 22 September 2018

[ The Tracking News | ephemerides | cleared ]

Notes: The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both risk monitors also post a few special objects with impact solutions beyond 100 years. For the latest official risk assessments, and for explanations of terminology and methodology, see NASA/JPL Sentry and NEODyS CLOMON2.
0000NNN000

Object

Risk
Monitor
 A/CC  Noted 
 Time & Day 
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Latest Risk Assessments
2018 SC1JPL Sentry1636 Sept. 222099-209912.847e-08-9.11-9.110Computed at 09:06 Sept. 22nd Pacific time based on 25 observations spanning 4.2115 days (2018-Sep-18.22771 to 2018-Sep-22.43923). Diameter approximately 0.010 km. from weighted mean H=27.58.
NEODyS1530 Sept. 20209922.45e-06-7.27-7.520Based on 18 optical observations (of which 0 are rejected as outliers) from 2018-09-18.229 to 2018-09-19.380.
Assessment postings were noted by A/CC on 20 Sept. & 22 Sept.   -   References: MPEC 2018-S43 plus DOU 2018-S52
2018 RJ7JPL Sentry1636 Sept. 22R E M O V E DRisk listing removed at 1611 UTC Sept. 22nd
NEODyS1530 Sept. 192057-208846.5e-09-6.32-6.50Based on 36 optical observations (of which 0 are rejected as outliers) from 2018-09-13.263 to 2018-09-18.343.
Assessment postings were noted by A/CC on 16 Sept., 17 Sept., 18 Sept., 19 Sept. & 22 Sept.   -   References: MPEC 2018-R191 plus DOUs 2018-S22, 2018-S30 & 2018-S52
2018 RB7NEODyS1500 Sept. 18209312.4e-07-4.96-4.960Based on 21 optical observations (of which 0 are rejected as outliers) from 2018-09-12.469 to 2018-09-17.442.
JPL Sentry1600 Sept. 172093-209312.891e-07-4.95-4.950Computed at 08:16 Sept. 17th Pacific time based on 21 observations spanning 4.9728 days (2018-Sep-12.46817 to 2018-Sep-17.44096). Diameter approximately 0.180 km. from weighted mean H=21.42.
Assessment postings were noted by A/CC on 15 Sept., 16 Sept., 17 Sept. & 18 Sept.   -   References: MPEC 2018-R184 plus DOU 2018-S22
2018 RP5NEODyS1530 Sept. 19210916.18e-10-10.05-10.050Based on 47 optical observations (of which 1 are rejected as outliers) from 2018-09-13.234 to 2018-09-18.291.
JPL Sentry1640 Sept. 16R E M O V E DRisk listing removed at 1506 UTC Sept. 16th
Assessment postings were noted by A/CC on 14 Sept., 15 Sept., 16 Sept., 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2018-R151 plus DOUs 2018-R178, 2018-S02, 2018-S22 & 2018-S30
2018 RF5NEODyS1530 Sept. 192069-211551.17e-05-6.42-6.670Based on 48 optical observations (of which 0 are rejected as outliers) from 2018-09-12.241 to 2018-09-18.408.
JPL Sentry1601 Sept. 182103-211538.8371e-06-6.53-6.810Computed at 08:36 Sept. 18th Pacific time based on 48 observations spanning 6.1670 days (2018-Sep-12.23986 to 2018-Sep-18.40684). Diameter approximately 0.011 km. from weighted mean H=27.37.
Assessment postings were noted by A/CC on 13 Sept., 14 Sept., 15 Sept., 16 Sept., 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2018-R142 plus DOUs 2018-R145, 2018-R178, 2018-S02, 2018-S22 & 2018-S30
2018 RQ4NEODyS1530 Sept. 192082-211582.56e-06-6.88-7.220Based on 36 optical observations (of which 0 are rejected as outliers) from 2018-09-11.282 to 2018-09-18.342.
JPL Sentry1601 Sept. 182088-2111114.39712e-06-6.64-7.180Computed at 08:16 Sept. 18th Pacific time based on 36 observations spanning 7.0603 days (2018-Sep-11.2811 to 2018-Sep-18.3414). Diameter approximately 0.014 km. from weighted mean H=26.85.
Assessment postings were noted by A/CC on 12 Sept., 13 Sept., 14 Sept., 15 Sept., 16 Sept., 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2018-R131 plus DOUs 2018-R136, 2018-R178, 2018-S02 & 2018-S30
2018 RJ3JPL Sentry1600 Sept. 172070-207011.288e-06-7.38-7.380Computed at 08:29 Sept. 17th Pacific time based on 48 observations spanning 7.8147 days (2018-Sep-09.56735 to 2018-Sep-17.382). Diameter approximately 0.009 km. from weighted mean H=27.83.
NEODyS1600 Sept. 172070-209137.62e-06-6.60-6.60Based on 44 optical observations (of which 0 are rejected as outliers) from 2018-09-09.568 to 2018-09-16.383.
Assessment postings were noted by A/CC on 10 Sept., 11 Sept., 12 Sept., 14 Sept., 15 Sept., 16 Sept. & 17 Sept.   -   References: MPEC 2018-R106 plus DOUs 2018-R111, 2018-R126, 2018-R178, 2018-S02 & 2018-S22
2018 RB2NEODyS1530 Sept. 192092-2118824.73e-05-5.76-6.07-Based on 55 optical observations (of which 0 are rejected as outliers) from 2018-09-07.270 to 2018-09-16.459.
JPL Sentry1601 Sept. 182092-2118293.277099e-05-5.89-6.300Computed at 08:59 Sept. 18th Pacific time based on 55 observations spanning 9.1891 days (2018-Sep-07.26955 to 2018-Sep-16.4586). Diameter approximately 0.012 km. from weighted mean H=27.29.
Assessment postings were noted by A/CC on 9 Sept., 10 Sept., 11 Sept., 12 Sept., 14 Sept., 16 Sept., 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2018-R75 plus DOUs 2018-R86, 2018-R101, 2018-R111, 2018-R126, 2018-S02, 2018-S22 & 2018-S30
2018 RY1NEODyS1600 Sept. 172040-2117102.29e-07-6.32-6.50Based on 62 optical observations (of which 0 are rejected as outliers) from 2018-09-07.140 to 2018-09-15.262.
JPL Sentry1640 Sept. 162040-207321.2343e-07-6.46-6.530Computed at 08:08 Sept. 16th Pacific time based on 62 observations spanning 8.1229 days (2018-Sep-07.13874 to 2018-Sep-15.261597). Diameter approximately 0.045 km. from weighted mean H=24.40.
Assessment postings were noted by A/CC on 9 Sept., 10 Sept., 11 Sept., 12 Sept., 13 Sept., 14 Sept., 15 Sept., 16 Sept. & 17 Sept.   -   References: MPEC 2018-R72 plus DOUs 2018-R86, 2018-R101, 2018-R111, 2018-R126, 2018-R136, 2018-R145, 2018-R178 & 2018-S02
2018 RR1NEODyS1530 Sept. 192083-2118371.82e-05-7.58-8.17-Based on 35 optical observations (of which 1 are rejected as outliers) from 2018-09-07.394 to 2018-09-15.468.
JPL Sentry1601 Sept. 182083-2118152.413506e-05-7.43-7.540Computed at 08:47 Sept. 18th Pacific time based on 34 observations spanning 8.0739 days (2018-Sep-07.39342 to 2018-Sep-15.467288). Diameter approximately 0.004 km. from weighted mean H=29.94.
Assessment postings were noted by A/CC on 8 Sept., 9 Sept., 10 Sept., 11 Sept., 14 Sept., 15 Sept., 16 Sept., 17 Sept., 18 Sept. & 19 Sept.   -   References: MPEC 2018-R64 plus DOUs 2018-R86, 2018-R101, 2018-R145, 2018-S02 & 2018-S30
2018 RQ1NEODyS1530 Sept. 20211724.44e-07-6.47-6.620Based on 103 optical observations (of which 1 are rejected as outliers) from 2018-09-07.381 to 2018-09-18.624.
JPL Sentry1640 Sept. 16R E M O V E DRisk listing removed at 1500 UTC Sept. 16th
Assessment postings were noted by A/CC on 8 Sept., 9 Sept., 10 Sept., 11 Sept., 12 Sept., 13 Sept., 14 Sept., 15 Sept., 16 Sept., 17 Sept., 18 Sept. & 20 Sept.   -   References: MPEC 2018-R63 plus DOUs 2018-R101, 2018-R111, 2018-R126, 2018-R136, 2018-R178, 2018-S02, 2018-S22, 2018-S39 & 2018-S52
2018 RWJPL Sentry1711 Sept. 92110-211015.372e-09-11.20-11.20Computed at 08:24 Sept. 9th Pacific time based on 48 observations spanning .66094 days (2018-Sep-07.34117 to 2018-Sep-08.00211). Diameter approximately 0.003 km. from weighted mean H=30.27.
An assessment posting was noted by A/CC on 9 Sept.   -   References: MPEC 2018-R40 plus DOUs 2018-R58 & 2018-R86
2018 QSNEODyS1600 Sept. 172084-211637.12e-06-5.96-5.990Based on 74 optical observations (of which 0 are rejected as outliers) from 2018-08-18.481 to 2018-09-15.461.
JPL Sentry1640 Sept. 162084-211623.1711e-06-6.31-6.370Computed at 07:44 Sept. 16th Pacific time based on 74 observations spanning 27.980 days (2018-Aug-18.47984 to 2018-Sep-15.460074). Diameter approximately 0.019 km. from weighted mean H=26.24.
Assessment postings were noted by A/CC on 22 Aug., 31 Aug., 2 Sept., 3 Sept., 4 Sept., 5 Sept., 6 Sept., 8 Sept., 9 Sept., 10 Sept., 11 Sept., 12 Sept., 14 Sept., 15 Sept., 16 Sept. & 17 Sept.   -   References: MPEC 2018-Q52 plus DOUs 2018-Q102, 2018-R08, 2018-R13, 2018-R17, 2018-R58, 2018-R111, 2018-R126, 2018-R178 & 2018-S02
2018 PA25NEODyS1430 Aug. 312026-2116331.75e-08-7.40-7.950Based on 6 optical observations (of which 0 are rejected as outliers) from 2018-08-14.355 to 2018-08-15.109.
JPL Sentry1733 Aug. 302029-2118152.58464e-08-7.18-7.390Computed at 08:40 Aug. 30th Pacific time based on 6 observations spanning .75458 days (2018-Aug-14.35374 to 2018-Aug-15.10832). Diameter approximately 0.036 km. from weighted mean H=24.88.
Assessment postings were noted by A/CC on 30 Aug. & 31 Aug.   -   References: DOU 2018-Q97
2018 PV24NEODyS1430 Aug. 31210426.44e-08-9.88-9.910Based on 6 optical observations (of which 0 are rejected as outliers) from 2018-08-11.447 to 2018-08-12.384.
An assessment posting was noted by A/CC on 31 Aug.   -   References: DOU 2018-Q97
2018 PZ21NEODyS1711 Sept. 92045-2117341.36e-05-5.90-6.150Based on 18 optical observations (of which 0 are rejected as outliers) from 2018-08-12.369 to 2018-09-05.346.
JPL Sentry1542 Sept. 72045-2108173.2236943e-05-5.45-5.500Computed at 08:07 Sept. 7th Pacific time based on 18 observations spanning 23.977 days (2018-Aug-12.36837 to 2018-Sep-05.345076). Diameter approximately 0.016 km. from weighted mean H=26.67.
Assessment postings were noted by A/CC on 7 Sept. & 9 Sept.   -   References: DOU 2018-R39
2018 PJ20NEODyS1701 Aug. 26209321.08e-07-8.27-8.470Based on 14 optical observations (of which 0 are rejected as outliers) from 2018-08-08.403 to 2018-08-18.373.
An assessment posting was noted by A/CC on 26 Aug.   -   References: DOU 2018-Q72
2018 OF2NEODyS1430 Aug. 31204311.9e-10-9.88-9.880Based on 17 optical observations (of which 0 are rejected as outliers) from 2018-07-23.171 to 2018-07-23.346.
An assessment posting was noted by A/CC on 31 Aug.   -   References: DOU 2018-Q97
2018 NLNEODyS1500 Sept. 72060-2114291.67e-04-4.03-4.070Based on 34 optical observations (of which 0 are rejected as outliers) from 2018-07-03.404 to 2018-09-05.557.
JPL Sentry1600 Sept. 62060-2108117.18206e-05-4.43-4.700Computed at 07:41 Sept. 6th Pacific time based on 34 observations spanning 64.153 days (2018-Jul-03.40294 to 2018-Sep-05.556332). Diameter approximately 0.028 km. from weighted mean H=25.37.
Assessment postings were noted by A/CC on 6 Sept. & 7 Sept.   -   References: DOU 2018-R23
2018 NJJPL Sentry1530 Aug. 252083-2116170.00158414857-4.45-4.450Computed at 07:36 Aug. 25th Pacific time based on 38 observations spanning 36.078 days (2018-Jul-05.27485 to 2018-Aug-10.352776). Diameter approximately 0.009 km. from weighted mean H=27.82.
NEODyS1530 Aug. 252083-2118432.5e-03-4.27-4.87-Based on 38 optical observations (of which 1 are rejected as outliers) from 2018-07-05.276 to 2018-08-10.354.
Assessment postings were noted by A/CC on 22 Aug. & 25 Aug.   -   References: DOUs 2018-Q43 & 2018-Q68
2015 XPNEODyS1600 Sept. 14206717.71e-07-6.61-6.610Based on 68 optical observations (of which 0 are rejected as outliers) from 2015-11-07.249 to 2015-12-05.108.
JPL Sentry1600 Sept. 132067-206715.521e-07-6.73-6.730Computed at 07:47 Sept. 13th Pacific time based on 68 observations spanning 27.858 days (2015-Nov-07.24826 to 2015-Dec-05.10672). Diameter approximately 0.024 km. from weighted mean H=25.76.
Assessment postings were noted by A/CC on 13 Sept. & 14 Sept.   -   References: DOU 2018-R136
2015 HE183NEODyS1600 Sept. 142080-209041.2e-06-7.57-7.650Based on 14 optical observations (of which 1 are rejected as outliers) from 2015-04-21.385 to 2015-04-26.537.
JPL Sentry1630 Sept. 122080-209033.6889e-07-8.04-8.390Computed at 07:47 Sept. 12th Pacific time based on 13 observations spanning 5.1522 days (2015-Apr-21.38391 to 2015-Apr-26.536079). Diameter approximately 0.008 km. from weighted mean H=28.18.
Assessment postings were noted by A/CC on 12 Sept. & 14 Sept.   -   References: DOU 2018-R126
2015 HW182JPL Sentry1600 Sept. 142019-21161775.14965e-08-6.82-7.540Computed at 21:11 April 14th of 2017 Pacific time based on 9 observations spanning .99990 days (2015-Apr-18.31077 to 2015-Apr-19.31067). Diameter approximately 0.031 km. from weighted mean H=25.20.
An assessment posting was noted by A/CC on 14 Sept.   -   References: no recent MPECs
2015 HV182JPL Sentry0311 Sept. 202018-21011901.943959e-07-4.61-5.780Computed at 13:25 April 6th of 2017 Pacific time based on 9 observations spanning .99953 days (2015-Apr-18.27618 to 2015-Apr-19.27571). Diameter approximately 0.157 km. from weighted mean H=21.70.
An assessment posting was noted by A/CC on 20 Sept.   -   References: no recent MPECs
2015 HS182JPL Sentry1800 Sept. 192022-21131135.06766e-08-7.40-8.220Computed at 05:44 April 8th of 2017 Pacific time based on 10 observations spanning 2.9577 days (2015-Apr-18.24103 to 2015-Apr-21.19874). Diameter approximately 0.023 km. from weighted mean H=25.82.
An assessment posting was noted by A/CC on 19 Sept.   -   References: no recent MPECs
2014 JU79NEODyS1500 Sept. 72022-2100174.81e-09-7.28-7.880Based on 7 optical observations (of which 0 are rejected as outliers) from 2014-05-05.175 to 2014-05-06.381.
An assessment posting was noted by A/CC on 7 Sept.   -   References: no recent MPECs
2014 EUNEODyS1600 Sept. 142080-211755.5e-06-6.95-7.160Based on 47 optical observations (of which 0 are rejected as outliers) from 2014-03-05.058 to 2014-03-29.316.
JPL Sentry1630 Sept. 122080-211751.94165e-06-7.42-7.730Computed at 07:40 Sept. 12th Pacific time based on 45 observations spanning 24.258 days (2014-Mar-05.05731 to 2014-Mar-29.315343). Diameter approximately 0.010 km. from weighted mean H=27.72.
Assessment postings were noted by A/CC on 12 Sept. & 14 Sept.   -   References: DOU 2018-R126
2009 FZ4JPL Sentry1804 Sept. 212019-21163992.4167858e-06-5.33-6.310Computed at 22:33 April 7th of 2017 Pacific time based on 11 observations spanning .59999 days (2009-Mar-19.36974 to 2009-Mar-19.96973). Diameter approximately 0.031 km. from weighted mean H=25.21.
An assessment posting was noted by A/CC on 21 Sept.   -   References: no recent MPECs
2008 EM68JPL Sentry1600 Sept. 132019-211611011.32190001e-05-5.19-5.470Computed at 00:27 April 7th of 2017 Pacific time based on 12 observations spanning .11019 days (2008-Mar-08.25164 to 2008-Mar-08.36183). Diameter approximately 0.010 km. from weighted mean H=27.72.
Assessment postings were noted by A/CC on 31 Aug., 8 Sept., 11 Sept., 12 Sept. & 13 Sept.   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 RE5JPL Sentry1600 Sept. 14R E M O V E DRisk listing removed at 1518 UTC Sept. 14th
Assessment postings were noted by A/CC on 13 Sept. & 14 Sept.   -   References: MPEC 2018-R141 plus DOUs 2018-R145 & 2018-S02
2018 RY3NEODyS1500 Sept. 15R E M O V E D
Assessment postings were noted by A/CC on 14 Sept. & 15 Sept.   -   References: MPEC 2018-R119 plus DOUs 2018-R136, 2018-R145, 2018-R178, 2018-S02 & 2018-S22
2018 RT3NEODyS1640 Sept. 16R E M O V E D
JPL Sentry1700 Sept. 15R E M O V E DRisk listing removed at 1604 UTC Sept. 15th
Assessment postings were noted by A/CC on 11 Sept., 12 Sept., 15 Sept. & 16 Sept.   -   References: MPEC 2018-R114 plus DOUs 2018-R178, 2018-S02 & 2018-S52
2018 RH3NEODyS1640 Sept. 16R E M O V E D
JPL Sentry1700 Sept. 15R E M O V E DRisk listing removed at 1606 UTC Sept. 15th
Assessment postings were noted by A/CC on 10 Sept., 11 Sept., 12 Sept., 13 Sept., 14 Sept., 15 Sept. & 16 Sept.   -   References: MPEC 2018-R104 plus DOUs 2018-R126, 2018-R136, 2018-R145, 2018-R178, 2018-S02 & 2018-S22
2018 RS1NEODyS1530 Sept. 11R E M O V E D
Assessment postings were noted by A/CC on 10 Sept. & 11 Sept.   -   References: MPEC 2018-R66 plus DOUs 2018-R86, 2018-R101, 2018-R126, 2018-R178, 2018-S22, 2018-S30 & 2018-S52
2018 RPNEODyS1533 Sept. 10R E M O V E D
JPL Sentry1711 Sept. 9R E M O V E DRisk listing removed at 1507 UTC Sept. 9th
Assessment postings were noted by A/CC on 7 Sept., 9 Sept. & 10 Sept.   -   References: MPEC 2018-R33 plus DOU 2018-R86
2018 RCNEODyS1711 Sept. 9R E M O V E D
JPL Sentry1600 Sept. 6R E M O V E DRisk listing removed at 1504 UTC Sept. 6th
Assessment postings were noted by A/CC on 5 Sept., 6 Sept., 7 Sept. & 9 Sept.   -   References: MPEC 2018-R15 plus DOUs 2018-R17, 2018-R23, 2018-R39, 2018-R58, 2018-R86, 2018-R101, 2018-R126, 2018-R145 & 2018-R178, radar: 6 Sept.
2018 QW1NEODyS1600 Sept. 13R E M O V E D
Assessment postings were noted by A/CC on 12 Sept. & 13 Sept.   -   References: MPEC 2018-R11 plus DOUs 2018-R17, 2018-R23, 2018-R101, 2018-R111, 2018-R126, 2018-R136 & 2018-S22
2018 QJ1JPL Sentry1530 Sept. 3R E M O V E DRisk listing removed at 1443 UTC Sept. 3rd
NEODyS1530 Sept. 3R E M O V E D
Assessment postings were noted by A/CC on 25 Aug., 26 Aug. & 3 Sept.   -   References: MPEC 2018-Q71 plus DOU 2018-R08
2018 QTJPL Sentry1530 Aug. 25R E M O V E DRisk listing removed at 1435 UTC Aug. 25th
NEODyS1530 Aug. 25R E M O V E D
Assessment postings were noted by A/CC on 22 Aug., 23 Aug. & 25 Aug.   -   References: MPEC 2018-Q53 plus DOUs 2018-Q65, 2018-Q68, 2018-Q102, 2018-R04, 2018-R05, 2018-R13, 2018-R17, 2018-R39, 2018-R58, 2018-R86, 2018-R101, 2018-R111, 2018-R126, 2018-S30 & 2018-S45
2018 PK21NEODyS1711 Aug. 22R E M O V E D
An assessment posting was noted by A/CC on 22 Aug.   -   References: DOUs 2018-Q43, 2018-Q72, 2018-Q74, 2018-Q76, 2018-Q102, 2018-R13, 2018-R17, 2018-R39, 2018-R58, 2018-R136, 2018-R145, 2018-S02, 2018-S22 & 2018-S30
2018 PG21NEODyS2212 Sept. 2R E M O V E D
JPL Sentry1430 Aug. 31R E M O V E DRisk listing removed at 1427 UTC Aug. 31st
Assessment postings were noted by A/CC on 31 Aug. & 2 Sept.   -   References: DOUs 2018-Q102, 2018-R17, 2018-R86 & 2018-R145
2018 PY7JPL Sentry1630 Sept. 12R E M O V E DRisk listing removed at 1502 UTC Sept. 12th
NEODyS1630 Sept. 12R E M O V E D
Assessment postings were noted by A/CC on 12 Sept.   -   References: DOU 2018-R126
2018 MC7NEODyS1530 Sept. 11R E M O V E D
JPL Sentry1500 Sept. 7R E M O V E DRisk listing removed at 1450 UTC Sept. 7th
Assessment postings were noted by A/CC on 22 Aug., 7 Sept. & 11 Sept.   -   References: DOUs 2018-Q43 & 2018-R39

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

For a list of risk-rated objects currently under observation, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" for more information.


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